Initial commit of upstream NSPR (4.7.3) and NSS3 (3.12).

third_party/nspr/mozilla/nsprpub/pr/include/gencfg.c

Index: third_party/nspr/mozilla/nsprpub/pr/include/gencfg.c
diff --git a/third_party/nspr/mozilla/nsprpub/pr/include/gencfg.c b/third_party/nspr/mozilla/nsprpub/pr/include/gencfg.c
new file mode 100644
index 0000000000000000000000000000000000000000..e67c13098d4c5857176df0387924583bd0c52606
--- /dev/null
+++ b/third_party/nspr/mozilla/nsprpub/pr/include/gencfg.c
@@ -0,0 +1,309 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is the Netscape Portable Runtime (NSPR).
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1998-2000
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#include <stdio.h>
+
+#if defined(sgi)
+#ifndef IRIX
+	error - IRIX is not defined
+#endif
+#endif
+
+#if defined(__sun)
+#if defined(__svr4) || defined(__svr4__) || defined(__SVR4)
+#ifndef SOLARIS
+	error - SOLARIS is not defined
+#endif
+#else
+#ifndef SUNOS4
+	error - SUNOS4 is not defined
+#endif
+#endif
+#endif
+
+#if defined(__hpux)
+#ifndef HPUX
+	error - HPUX is not defined
+#endif
+#endif
+
+#if defined(__alpha) 
+#if !(defined(_WIN32)) && !(defined(OSF1)) && !(defined(__linux)) && !(defined(__FreeBSD__))
+	error - None of OSF1, _WIN32, __linux, or __FreeBSD__ is defined
+#endif
+#endif
+
+#if defined(_IBMR2)
+#ifndef AIX
+	error - AIX is not defined
+#endif
+#endif
+
+#if defined(linux)
+#ifndef LINUX
+	error - LINUX is not defined
+#endif
+#endif
+
+#if defined(bsdi)
+#ifndef BSDI
+	error - BSDI is not defined
+#endif
+#endif
+
+#if defined(M_UNIX)
+#ifndef SCO
+      error - SCO is not defined
+#endif
+#endif
+#if !defined(M_UNIX) && defined(_USLC_)
+#ifndef UNIXWARE
+      error - UNIXWARE is not defined
+#endif
+#endif
+
+#if defined(__APPLE__)
+#ifndef DARWIN
+      error - DARWIN is not defined
+#endif
+#endif
+
+#if defined(__NeXT__)
+#ifndef NEXTSTEP
+      error - NEXTSTEP is not defined
+#endif
+#endif
+
+/************************************************************************/
+
+/* Generate cpucfg.h */
+
+#ifdef XP_PC
+#ifdef WIN32
+#define INT64	_PRInt64
+#else
+#define INT64	long
+#endif
+#else
+#if defined(HPUX) || defined(NECSVR4) || defined(SCO) || defined(UNIXWARE) || defined (NCR)
+#define INT64	long
+#else
+#define INT64	long long
+#endif
+#endif
+
+struct align_short {
+    char c;
+    short a;
+};
+struct align_int {
+    char c;
+    int a;
+};
+struct align_long {
+    char c;
+    long a;
+};
+struct align_PRInt64 {
+    char c;
+    INT64 a;
+};
+struct align_fakelonglong {
+    char c;
+    struct {
+	long hi, lo;
+    } a;
+};
+struct align_float {
+    char c;
+    float a;
+};
+struct align_double {
+    char c;
+    double a;
+};
+struct align_pointer {
+    char c;
+    void *a;
+};
+
+#define ALIGN_OF(type) \
+    (((char*)&(((struct align_##type *)0)->a)) - ((char*)0))
+
+int bpb;
+
+/* Used if shell doesn't support redirection. By default, assume it does. */
+FILE *stream;
+
+static int Log2(int n)
+{
+    int log2 = 0;
+
+    if (n & (n-1))
+	log2++;
+    if (n >> 16)
+	log2 += 16, n >>= 16;
+    if (n >> 8)
+	log2 += 8, n >>= 8;
+    if (n >> 4)
+	log2 += 4, n >>= 4;
+    if (n >> 2)
+	log2 += 2, n >>= 2;
+    if (n >> 1)
+	log2++;
+    return log2;
+}
+
+/* We assume that int's are 32 bits */
+static void do64(void)
+{
+    union {
+	int i;
+	char c[4];
+    } u;
+
+    u.i = 0x01020304;
+    if (u.c[0] == 0x01) {
+	fprintf(stream, "#undef  IS_LITTLE_ENDIAN\n");
+	fprintf(stream, "#define IS_BIG_ENDIAN 1\n\n");
+    } else {
+	fprintf(stream, "#define IS_LITTLE_ENDIAN 1\n");
+	fprintf(stream, "#undef  IS_BIG_ENDIAN\n\n");
+    }
+}
+
+static void do32(void)
+{
+    union {
+	long i;
+	char c[4];
+    } u;
+
+    u.i = 0x01020304;
+    if (u.c[0] == 0x01) {
+	fprintf(stream, "#undef  IS_LITTLE_ENDIAN\n");
+	fprintf(stream, "#define IS_BIG_ENDIAN 1\n\n");
+    } else {
+	fprintf(stream, "#define IS_LITTLE_ENDIAN 1\n");
+	fprintf(stream, "#undef  IS_BIG_ENDIAN\n\n");
+    }
+}
+
+/*
+** Concievably this could actually be used; but there is lots of code out
+** there with and's and shift's in it that assumes a byte is 8 bits, so
+** forget about porting THIS code to those non 8 bit byte machines.
+*/
+static void BitsPerByte(void)
+{
+    bpb = 8;
+}
+
+int main(int argc, char **argv)
+{
+    BitsPerByte();
+
+    /* If we got a command line argument, try to use it as the stream. */
+    ++argv;
+    if(*argv) {
+        if(!(stream = fopen ( *argv, "wt" ))) {
+            fprintf(stderr, "Could not write to output file %s.\n", *argv);
+            return 1;
+        }
+    } else {
+		stream = stdout;
+	}
+
+    fprintf(stream, "#ifndef nspr_cpucfg___\n");
+    fprintf(stream, "#define nspr_cpucfg___\n\n");
+
+    fprintf(stream, "/* AUTOMATICALLY GENERATED - DO NOT EDIT */\n\n");
+
+    if (sizeof(long) == 8) {
+	do64();
+    } else {
+	do32();
+    }
+    fprintf(stream, "#define PR_BYTES_PER_BYTE   %d\n", sizeof(char));
+    fprintf(stream, "#define PR_BYTES_PER_SHORT  %d\n", sizeof(short));
+    fprintf(stream, "#define PR_BYTES_PER_INT    %d\n", sizeof(int));
+    fprintf(stream, "#define PR_BYTES_PER_INT64  %d\n", 8);
+    fprintf(stream, "#define PR_BYTES_PER_LONG   %d\n", sizeof(long));
+    fprintf(stream, "#define PR_BYTES_PER_FLOAT  %d\n", sizeof(float));
+    fprintf(stream, "#define PR_BYTES_PER_DOUBLE %d\n\n", sizeof(double));
+
+    fprintf(stream, "#define PR_BITS_PER_BYTE    %d\n", bpb);
+    fprintf(stream, "#define PR_BITS_PER_SHORT   %d\n", bpb * sizeof(short));
+    fprintf(stream, "#define PR_BITS_PER_INT     %d\n", bpb * sizeof(int));
+    fprintf(stream, "#define PR_BITS_PER_INT64   %d\n", bpb * 8);
+    fprintf(stream, "#define PR_BITS_PER_LONG    %d\n", bpb * sizeof(long));
+    fprintf(stream, "#define PR_BITS_PER_FLOAT   %d\n", bpb * sizeof(float));
+    fprintf(stream, "#define PR_BITS_PER_DOUBLE  %d\n\n", 
+            bpb * sizeof(double));
+
+    fprintf(stream, "#define PR_BITS_PER_BYTE_LOG2   %d\n", Log2(bpb));
+    fprintf(stream, "#define PR_BITS_PER_SHORT_LOG2  %d\n", 
+            Log2(bpb * sizeof(short)));
+    fprintf(stream, "#define PR_BITS_PER_INT_LOG2    %d\n", 
+            Log2(bpb * sizeof(int)));
+    fprintf(stream, "#define PR_BITS_PER_INT64_LOG2  %d\n", 6);
+    fprintf(stream, "#define PR_BITS_PER_LONG_LOG2   %d\n", 
+            Log2(bpb * sizeof(long)));
+    fprintf(stream, "#define PR_BITS_PER_FLOAT_LOG2  %d\n", 
+            Log2(bpb * sizeof(float)));
+    fprintf(stream, "#define PR_BITS_PER_DOUBLE_LOG2 %d\n\n", 
+            Log2(bpb * sizeof(double)));
+
+    fprintf(stream, "#define PR_ALIGN_OF_SHORT   %d\n", ALIGN_OF(short));
+    fprintf(stream, "#define PR_ALIGN_OF_INT     %d\n", ALIGN_OF(int));
+    fprintf(stream, "#define PR_ALIGN_OF_LONG    %d\n", ALIGN_OF(long));
+    if (sizeof(INT64) < 8) {
+	/* this machine doesn't actually support PRInt64's */
+	fprintf(stream, "#define PR_ALIGN_OF_INT64   %d\n", 
+                ALIGN_OF(fakelonglong));
+    } else {
+	fprintf(stream, "#define PR_ALIGN_OF_INT64   %d\n", ALIGN_OF(PRInt64));
+    }
+    fprintf(stream, "#define PR_ALIGN_OF_FLOAT   %d\n", ALIGN_OF(float));
+    fprintf(stream, "#define PR_ALIGN_OF_DOUBLE  %d\n", ALIGN_OF(double));
+    fprintf(stream, "#define PR_ALIGN_OF_POINTER %d\n\n", ALIGN_OF(pointer));
+
+    fprintf(stream, "#endif /* nspr_cpucfg___ */\n");
+    fclose(stream);
+
+    return 0;
+}